Description
Review
Description
1. Basic Components of the Production Line
(1) Pulping System
Function: Mix ceramic fiber raw materials (loose cotton) with water and binders (such as silica sol, phosphate) to prepare uniform fiber slurry.
Equipment: Pulping machine, refiner, mixing tank.
(2) Forming System
Function: Form wet paper sheets from the slurry through the papermaking process by dehydration.
Equipment: Fourdrinier paper machine, cylinder mould paper machine, or inclined wire forming machine (depending on paper thickness and uniformity requirements).
(3) Drying System
Function: Remove water from the wet sheet and solidify the fiber structure.
Equipment: Hot-air drying oven, drum dryer (divided into low- and high-temperature sections, typically 100–300℃).
(4) Post-treatment System
Function: Surface treatment, cutting, or rewinding of dried fiber paper.
Equipment: Calender (for surface smoothness), slitter, rewinder.
(5) Auxiliary System
Water / air supply system, dust removal equipment, and electrical control system (automated production parameter control).
2. Core Production Process
Ø Raw Material Preparation:
Ceramic fiber raw materials (e.g., short fibers produced by melt-blowing) are crushed and de-dusted, then mixed with binders and dispersants.
Ceramic fiber raw materials (e.g., short fibers produced by melt-blowing) are crushed and de-dusted, then mixed with binders and dispersants.
Ø Pulping:
Fibers and water are fully dispersed in a pulping machine, forming a uniform slurry with a concentration of about 1–3% (fiber length typically 0.5–3 mm).
Fibers and water are fully dispersed in a pulping machine, forming a uniform slurry with a concentration of about 1–3% (fiber length typically 0.5–3 mm).
Ø Paper Forming:
The slurry is evenly distributed on the forming wire through the headbox, then dehydrated under vacuum and pressed by rollers to form wet sheets (thickness 0.5–5 mm).
The slurry is evenly distributed on the forming wire through the headbox, then dehydrated under vacuum and pressed by rollers to form wet sheets (thickness 0.5–5 mm).
Ø Drying & Curing:
Wet sheets enter the drying kiln with the conveyor belt, where hot-air circulation or infrared heating reduces the moisture content to below 3%. At the same time, the binder cures the bonding between fibers.
Wet sheets enter the drying kiln with the conveyor belt, where hot-air circulation or infrared heating reduces the moisture content to below 3%. At the same time, the binder cures the bonding between fibers.
Ø Slitting & Packaging:
Dried fiber paper is calendered, cut to the required dimensions (such as rolls or flat sheets), inspected, and packaged for storage.
Dried fiber paper is calendered, cut to the required dimensions (such as rolls or flat sheets), inspected, and packaged for storage.
3. Product Features & Application Fields
ü Product Features:
High-temperature resistance (600–1400℃ depending on fiber type)
Low thermal conductivity (0.03–0.06 W/m·K)
Thermal shock resistance
Easy processing (cutting, punching, shaping)
ü Main Applications:
Industrial Insulation: Furnace lining, pipe insulation, high-temperature equipment gaskets.
Electronics / Appliances: Insulation layers for heating elements, oven sealing gaskets.
Aerospace: Engine insulation components, fireproof partitions (meeting flame-retardant standards).
Special Fields: Nuclear power equipment insulation, fireproof materials (such as fire curtain interlayers).
4. Development Trends
▶Energy Saving: Adoption of heat pump drying and waste heat recovery to reduce energy consumption.
▶High Performance: Development of low-chlorine/fluorine, corrosion-resistant ceramic fiber paper for chemical furnaces.
▶Intelligent Control: Integration of online monitoring systems (thickness, moisture, etc.) to improve product consistency.
5. FAQ
Q1: Can the ceramic fiber paper production line produce different grades of ceramic fiber paper?
A1: Yes. Depending on application temperature, it can produce standard, high-alumina, and zirconia-containing ceramic fiber paper.
A1: Yes. Depending on application temperature, it can produce standard, high-alumina, and zirconia-containing ceramic fiber paper.
Q2: What is the approximate investment cost of a ceramic fiber paper production line?
A2: A small-scale production line costs about RMB 2–5 million, while a medium-scale line (including workshop and environmental facilities) costs about RMB 8–15 million.
A2: A small-scale production line costs about RMB 2–5 million, while a medium-scale line (including workshop and environmental facilities) costs about RMB 8–15 million.
Q3: What is the typical thickness range of ceramic fiber paper produced by the line?
A3: The current production range is 0.5–13 mm. With technological advancements, even thinner products are expected in the future.
A3: The current production range is 0.5–13 mm. With technological advancements, even thinner products are expected in the future.
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